# SE809-HF-3.08V

**Seaward Elec** · Monitors & Reset Circuits · SOT-23

SE809-HF-3.08V from Seaward Elec, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground reference pin for the supervisor. |
| 2 | RESET | output | Active-low RESET output stays low while Vcc is below the reset voltage threshold and for 150msec (typ) after Vcc rises above the threshold. |
| 3 | Vcc | power_in | Supply voltage input monitored against the reset threshold, with an operating input range of 2.0V to 5.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Seaward Elec |
| Package | SOT-23 |
| Category | Power Management ICs |
| Pins | 3 |

## CAD (KiCad official)

- Symbol: `SE809-HF-3.08V`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `se809-hf-3-08v-etched.step` / `se809-hf-3-08v-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `se809-hf-3-08v.step` / `se809-hf-3-08v.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Seaward Elec datasheet](docs/se809-hf-3-08v-datasheet.pdf) (6 pp, sha256 `b82b296225b5cab3`, retrieved 2026-11-02, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/se809-hf-3-08v-datasheet.pdf)